Over the next five days, a wet, summer-like weather pattern will bring waves of overnight showers and thunderstorms across parts of Oklahoma.

In the weather world, this weather pattern is called "northwest flow" since the jet stream is orientated out of the northwest. Typically, summer heat builds during the day with storms developing across the High Plains in the late afternoon and early evening. Those storms ride along with the jet stream and travel from the northwest to the southeast during the overnight. The storms feed off the heat and humidity from the earlier afternoon and typically produce heavy rains and a wave of damaging winds.

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With a northwest flow pattern over the next five days, Oklahoma is expected to receive widespread 2-inch rain totals with some spots seeing over 5 inches of rain. Click on the image above to see the five-day rain outlook from the Weather Prediction Center.

With heavy rains expected, localized flash flooding may be a risk for motorists during the overnight hours. Remember, never drive through flash flooding.